Print head charge shield

Abstract

A printer according to the present techniques includes a print head having at least one nozzle for ejecting an ink drop and a sensing element for detecting the ink drop. The print head includes a charge shield for imparting an electrical charge into the ink drop during ejection from the nozzle and for shielding electrical noise generated in the print head.

1. A print head comprising a firing mechanism that generates an electrical noise and further comprising a charge shield for imparting an electrical charge into an ink drop during ejection from a nozzle of the print head and for shielding the electrical noise. 
     
     
       2. The print head of  claim 1 , wherein the charge shield is attached to the print head. 
     
     
       3. The print head of  claim 1 , wherein the charge shield is integrated into a flexible cable attached to the print head. 
     
     
       4. The print head of  claim 1 , wherein the charge shield is integrated into a silicon structure in the print head that includes a firing mechanism.